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Bond energy refers to the amount of energy required to break a specific bond between two atoms in a molecule. It's essentially the strength of the bond. A higher bond energy indicates a stronger bond.
For example, the bond energy of a C-H bond is approximately 413 kJ/mol. This means that 413 kilojoules of energy are needed to break one mole of C-H bonds.
Understanding bond energies is crucial for understanding various chemical processes, including:
Reaction enthalpy: Predicting the heat released or absorbed during a chemical reaction.
Stability of molecules: Determining the relative strength of different molecules and their likelihood of reacting.
Spectroscopy: Analyzing the absorption or emission of light by molecules.